Claper

Website

Interactive live Q&A, polls, and quizzes for presentations

788 stars 150 forks last commit first released AGPL-3.0

Actively maintained

Last commit 20 Aug 2026.

Claper screenshot

Claper is an open-source audience engagement platform that makes presentations interactive with real-time participation. It helps speakers collect live feedback while giving attendees an easy way to ask questions and respond during talks.

Key Features

  • Live audience interactions such as polls, quizzes, and Q&A during an event
  • Real-time feedback to help presenters adapt content while speaking
  • Event reporting and data exports for post-event review
  • Team collaboration to manage presentations and events together
  • Multi-language user interface (includes English, French, German, Spanish, Dutch, Italian, Hungarian, and Latvian)

Use Cases

  • Classroom engagement with quick quizzes and anonymous questions
  • Corporate meetings to gather input and validate decisions via instant polls
  • Conferences and live events to run interactive sessions and collect feedback

Limitations and Considerations

  • Some hosted-plan features and limits (such as attendee caps and presentation size) may differ from a self-managed deployment

Claper is well-suited for educators, teams, and event organizers who want a lightweight, real-time interaction layer for presentations. It provides core engagement workflows while remaining deployable on your own infrastructure.

Categories:

Tags:

Tech Stack:

Share:

Similar to Claper

Nextcloud Talk logo

Nextcloud Talk

Privacy-respecting, self-hosted chat and video meetings.

2.2k
574
Last commit

Self-hosted Nextcloud Talk combines chat, video calls and webinars into one secure collaboration app.

AGPL-3.0Actively maintained
Alternative to:
Microsoft Teams logo
Microsoft Teams
+19
Titra logo

Titra

Open-source project time tracking for freelancers and small teams

494
68
Last commit

Project-based, minimalist time tracking with realtime reports, exports and basic integrations; available as a hosted demo or deployable via Docker and MongoDB.

AGPL-3.0Actively maintained
Alternative to:
Toggl Track logo
Toggl Track
+11

SyncTube

Synchronized web app for shared video playback and chat

385
64
Last commit

Lightweight web application for synchronized video playback with chat, leader-controlled playback, subtitle/audio track support and Docker deployment.

MITActively maintained
Alternative to:
Watch2Gether logo
Watch2Gether
+3
Foundry Virtual Tabletop logo

Foundry Virtual Tabletop

Self-hosted, extensible web-based virtual tabletop for role‑playing games

383
16
Last commit

A modular, developer-friendly virtual tabletop that runs on Node.js/Electron, offering scenes, dynamic lighting, compendia and a rich module/system ecosystem.

Actively maintained
mindwendel logo

mindwendel

Collaborative brainstorming board with voting and AI idea generation

137
18
Last commit

Self-hosted Phoenix app for anonymous team brainstorming, idea upvoting, labeling, encrypted file attachments, AI-assisted idea generation, exports and live updates.

AGPL-3.0Actively maintained
Alternative to:
Miro logo
Miro
+7
Atria logo

Atria

Open-source event management and attendee networking platform

98
4
Last commit

Atria is an AGPL-3.0 open-source platform for managing hybrid events, sessions, sponsors, and real-time attendee networking with chat and discovery tools.

AGPL-3.0Slowing down
Alternative to:
Whova logo
Whova
+16